You control ISO on a film camera by adjusting the ISO dial.
Locating the ISO Dial
The ISO dial is typically located on the top of your camera, to the lefthand side underneath the rewind knob. It is usually the dial that displays numbers ranging from 50 to 3200, and it's commonly marked ASA as well.
Understanding ISO Settings
- ISO is a measure of film's sensitivity to light.
- Lower ISO numbers (e.g., 100) mean the film is less sensitive to light and best used in bright conditions.
- Higher ISO numbers (e.g., 800 or 1600) mean the film is more sensitive to light and better for low light situations.
How to Change the ISO
- Locate the ISO dial: As mentioned, it's usually on the top left of the camera, beneath the rewind knob.
- Rotate the dial: Turn the dial to match the ISO of the film you've loaded into the camera. For example, if you loaded an ISO 400 film, set the dial to 400.
Practical Tips
- Match ISO settings: Always set the camera’s ISO dial to the film's ISO rating before taking photos.
- Daylight vs. Low light: For bright, sunny days, using a lower ISO film will be beneficial. In the evening or indoor settings, it is better to use a higher ISO film for good results.
- Adjust between rolls: If you switch to a film with a different ISO, remember to change your dial accordingly.
